RESULTS OBTAINED ON THE EFFICACY OF 6-BA ALONE, AND IN COMBINATION WITH OTHER THINNING AGENTS FROM DIFFERENT APPLE PRODUCING AREAS OF NORTHERN ITALY
2006; De Gruyter; Volume: 14; Linguagem: Inglês
ISSN
2300-8849
AutoresAnna Maria Bregoli, C. Fabbroni, Roberto Vancini, A. Galliano, G. Costa,
Tópico(s)Postharvest Quality and Shelf Life Management
ResumoA B S T R A C T The thinning efficacy of 6-BA alone, and in combination with other chemicals, relating to fruit size and climate conditions, was investigated in different apple producing areas of Northern Italy. In two different areas of the Emilia-Romagna region (Bologna and Ferrara), 150 ppm of 6-BA alone, and in combination with Carbaryl or NAA, were applied to fruit on ‘Galaxy’ and ‘Fuji’ orchards at different phenological stages. In the Piedmont region (Cuneo district area), 150 ppm of 6-BA alone, and in combination with Carbaryl, NAD, or Ethephon, were applied to three cultivars (‘Schniga Schnitzer’, ‘Nagafu 6’ and ‘Scarlet’) at different phenological stages, namely between 12.7 and 14 mm of the king fruit's diameter. During the growing season, and at the time of application, the minimum and maximum temperatures were monitored daily. The number of flower clusters at full bloom, fruitlets at fruit set, and fruit before and after the June drop, were assessed. At harvest, the productive performance, (fruit number, fresh weight and the distribution of fruit in the commercial sized classes), was measured. During the trial performed in the Bologna district area, the biometric, (diameter and length) and the quality parameters, (fresh weight, soluble solid content, flesh firmness and starch), were also
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